右键环视旋转中心改为屏幕中心点,消除按下即瞬移
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@@ -383,9 +383,14 @@ export class CesiumGlobe {
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};
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handler.setInputAction((movement) => {
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const pivot =
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scene.pickPosition(movement.position) ||
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camera.pickEllipsoid(movement.position, scene.globe.ellipsoid);
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// 旋转中心 = 相机当前注视的屏幕中心点(与原生 tilt 一致),
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// 而不是点击点:用点击点会导致一拖动就“瞬移”到点击处。
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const canvas = scene.canvas;
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const center = Cesium.Cartesian2.fromElements(
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canvas.clientWidth / 2,
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canvas.clientHeight / 2,
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);
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const pivot = camera.pickEllipsoid(center, scene.globe.ellipsoid);
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if (!Cesium.defined(pivot)) return;
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const sc = this._orbitScratch;
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const offset = Cesium.Cartesian3.subtract(camera.position, pivot, sc.offset);
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